Drawing Templates

Trading Platform sends HTTP/HTTPS commands to charts_storage_url/charts_storage_api_version/drawing_templates?client=client_id&user=user_id. charts_storage_url, charts_storage_api_version, client_id and user_id are the arguments of the widget constructor. You should implement the processing of 4 requests: save template / load template / delete template / list templates.

LIST TEMPLATES

GET REQUEST: charts_storage_url/charts_storage_api_version/drawing_templates?client=client_id&user=user_id&tool=toolName

1. toolName: name of the drawing tool

RESPONSE: JSON Object

1. status: ok or error
2. data: Array of drawing templates names
   1. name: the drawing template name (example, Test)

SAVE TEMPLATE

POST REQUEST: charts_storage_url/charts_storage_api_version/drawing_templates?client=client_id&user=user_id&tool=toolName&name=templateName

1. toolName: name of the drawing tool

2. templateName: custom template name

3. body: { content: content }

   1. content: saved content of the template

RESPONSE: JSON Object

1. status: ok or error

LOAD TEMPLATE

GET REQUEST: charts_storage_url/charts_storage_api_version/drawing_templates?client=client_id&user=user_id&chart=chart_id&tool=toolName&name=templateName

1. toolName: name of the drawing tool
2. templateName: template name to get

RESPONSE: JSON Object

1. status: ok or error
2. data: Object
   1. content: saved content of the template

DELETE TEMPLATE

DELETE REQUEST: charts_storage_url/charts_storage_api_version/drawing_templates?client=client_id&user=user_id&chart=chart_id&tool=toolName&name=templateName

1. toolName: name of the drawing tool
2. templateName: name of template to remove

RESPONSE: JSON Object

1. status: ok or error

Using Demo Drawing Templates Storage

We're running a demo drawing templates storage service to let you save/load drawing templates as soon as you build your Trading Platform. Here is the link http://saveload.tradingview.com. Note that it's provided as-is since it's a demo.

We do not guarantee its stability. Also, note that we delete the data in the storage on a regular basis.

save_load_adapter

Starting from version 1.12.

One of the parameters in Widget Constructor, this is basically an object containing the save/load functions. It is used to customize the Templates dropdown behavior on Drawing settings floating panel. In addition to required fields you should add drawing templates methods:

1. getDrawingTemplates(toolName: string): Promise<string[]>

   A function to get names of all saved drawing templates.

   • toolName - name of the drawing tool.

2. removeDrawingTemplate(toolName: string, templateName: string): Promise<void>

   A function to remove a drawing template.

3. saveDrawingTemplate(toolName: string, templateName: string, content: string): Promise<void>

   A function to save a drawing template.

   • toolName - name of the drawing tool.
   • content - content of the drawing template.

4. loadDrawingTemplate(toolName: string, templateName: string): Promise<string>

   • toolName - name of the drawing tool.
   • templateName - name of the template.

   A function to load a drawing template from the server.

IMPORTANT: All functions should return a Promise (or Promise-like objects).

In-memory example for testing purposes.