v0.2.1
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Architecture
Architecture is a document that describes how things work.
What is the goal of architecting before coding?
- Spend more time figuring out how your code will work
- Spend less time writing code
- 80% of time architecting, 20% codingBut really...
- Reduce time spent rewriting code
- Improve code quality and cohesion
- Future-proofing code
Process
- 1.
- 2.Be sure to describe, in as much detail, every section of the template
- 3.Commit your architecture every day or two
- 4.Present the architecture to a qualified party
- 5.Implement the feature
- 6.Update the architecture as you go, especially the R&D section
- 7.Update the architecture upon completing your feature
- 8.Completion date, post-mortem, R&D, etc.
Template
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# [Feature Title]
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​
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​
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## Description
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This is the general "what?" of the feature. What is your feature? Why is it important? Keep it brief and to-the-point.
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​
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​
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## Goals
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* The "why?" of this feature
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* Point form
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* High-level
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* Not more than 5
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​
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​
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## Post-Mortem (optional)
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Initially TBD. This section is filled after development is complete.
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​
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* Mistakes
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* This should be updated as you implement the feature
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* Add anything that you missed in your original architecture
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* Challenges
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* This should be updated as you implement the feature
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* Add anything that was more challenging than expected, and may have contributed to misjudgement of time
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* Metrics
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* List the metrics changes that arose after the feature was shipped
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* Don't forget to compare them with your expectations
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* Learnings
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* Jot down what you learned in architecting and building this feature
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* How will you improve in future feature architectures and implementations?
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​
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​
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## Metrics (optional)
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* Added
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* Every new metric that will be tracked
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* Eg. `CONVERSATION_OPENED { isRead }`
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* Changed
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* Every metric that be was modified
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* Eg. `SIGNUP` segmented by `{ type: 'email'|'facebook' }`
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* Removed
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* Every removed metric
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* Eg. `FACEBOOK_SIGNUP`
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* Expectations
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* More
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* Events that you expect to see more of
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* Less
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* Events that you expect to see less of
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​
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Example:
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* Actions
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* Added
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* `AUDIO_SEEK`
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* `AUDIO_PLAY`
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* `AUDIO_PAUSE`
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* `AUDIO_FAST_FORWARD`
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* `AUDIO_REWIND`
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* `AUDIO_TOGGLE_MUSIC`
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* `AUDIO_PLAYBACK_DONE`
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* Expectations
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* More
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* SIGNUP > PREMIUM_SUBSCRIBED
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​
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​
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## R&D
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* Problem: Ask every question that you can think of regarding this feature and the challenges involved in implementing it
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* Describe results you obtained through research and development
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* What frameworks did you try? Why?
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* What information did you gather? StackOverflow answers, videos, GitHub comments, etc.
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* What assumptions did you make? How did they change? Why?
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* What had to be reverted? Why?
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* Solution: What was the final solution? Why did you pick it? List any sources.
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* Problem 2: ...
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​
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Example:
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* Problem: `react-native-audio-toolkit` does not support audio playback on a locked device on iOS
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* https://github.com/futurice/react-native-audio-toolkit/blob/master/docs/API.md#player-methods
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* `react-native-sound` does not support streaming
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* https://github.com/zmxv/react-native-sound/issues/353
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* Solution 1: `react-native-track-player`
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* https://github.com/react-native-kit/react-native-track-player/wiki/Background-Mode
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* Solution 2: `react-native-video`
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* https://github.com/react-native-community/react-native-video#audio-mixing
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* Conclusion: Use `react-native-track-player` since it's better suited for playing long audio files in the background.
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* Switch to `react-native-video` if something is missing there.
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​
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​
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## Flow
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* This is the "when?" and "where?" of this feature. Detailed user stories are examples of the flow.
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* This happens first
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* Then this
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* And so forth
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* Go through all scenarios
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​
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​
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## Sub-Features
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[ ] This is the specific "how?" and "what?" of this feature
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[ ] Break it down
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[ ] How will you achieve your goals?
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[ ] Be as specific as possible
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[ ] Solve all problems before they occur and discover overlappings
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[ ] These checkboxes are then checked off as you implement the feature
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[ ] The feature is complete once all checkboxes are checked, meaning nothing should be missing from this list
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[ ] Once your architecture is merged, these can be moved to your favourite project management system
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​
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Example:
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[ ] <ConversationsContainer>: A container that will act as the root for the new <Stack>, left of <NotificationsContainer>
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[ ] bootyUtil
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[ ] bootyUtil.getSpanks: Get the number of spanks for the given performer
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[ ] bootyUtil.checkBooty: Checks the provided booty
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​
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​
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## Migration (optional)
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* How will the current architecture be modified to migrate to this new architecture?
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* What files will be removed?
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* What functions will be deprecated?
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* What storage migrations will be performed
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​
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​
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## API
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* Write as much code in here as you can
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* Function signatures, constants, contract interfaces, etc
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* Structure sections by filenames
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* Be sure to alphabetize your api sections
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​
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### [filename/path/here.js]
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```js
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/**
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* Fully document everything. This code is copy-pasteable for when
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* you begin the implementation phase.
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* @return {Boolean}
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*/
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function yoMama() {}
Copied!
[another/file/path.js]
Here is an example of a changed file:
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// ...
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​
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/**
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* This is a new function in an existing file. It is optionally wrapped in `// ...`.
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* @return {Any}
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*/
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function newFunction() {}
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​
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// ...
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​
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const EXISTING_CONSTANT = {
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​
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// ...
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​
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/**
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* This is a new property. Notice that it is surrounded by `// ...` to show
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* that it is modifying existing code.
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* @type {Object}
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*/
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myNewProp: {},
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​
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// ...
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​
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}
Copied!
[contract/location/wayback.sol]
Here is an example of a contract interface:
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contract Wayback {
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/**
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* Keep documenting.
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*/
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mapping(bytes32 => address) projectToOwner;
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mapping(bytes32 => address) eventTxHashToApproved;
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event action(bytes32 projectId, bytes32 metaData);
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​
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function writeEvent(bytes32 projectId, bytes32 metaData) external {}
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function writeAndApprove(bytes32 projectId, bytes32 metaData, bytes32 eventTxHash, address thirdParty) external {}
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function sign(bytes32 projectId, bytes32 metaData, bytes32 eventTxHash) external {}
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}
Copied!
```
Examples
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