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JSON Message
JSON Schema new

Remember, generating an ASN.1 schema from JSON is always an approximation. Try different options, modify both the JSON and the ASN.1 for the best match. See examples.

Naming (non-ASN.1 characters):

Remove
Replace with hyphen
Split and CamelCase

Allow underscores Underscores are not valid ASN.1 characters, but some ASN.1 compilers allow them.

Arrays (treat arrays as):

List of similar items Useful for homogeneous arrays.
An ordered list of related items (a tuple) Useful for arrays of ordered items. Requires an Encoding Instruction.
An unordered collection of various items Useful for an array of different types. Requires an Encoding Instruction.
Allow the tool to decide A mix of the above, different arrays may be treated differently.

Treat null and {} as equivalent Inserting a NULL into an array requires more complex ASN.1.

Values:

Generate ASN.1 values Include ASN.1 value in the generated schema.

Generate DEFAULTs Generate default values for primitive types.

Other:

Generate comments/hints Show how the input JSON message can be changed to better fit ASN.1 schema rules.

Allow ASN.1 Encoding Instructions Generate an exact, but more complex schema.

Make objects extensible Add ASN.1 extension marker '...' to SEQUENCE/CHOICE to accommodate for new fields/versioning.

JSON Schema conversion is in beta. Remember, generating an ASN.1 schema from JSON is always an approximation. Try different options, modify both the JSON and the ASN.1 for the best match. See examples.

Naming (non-ASN.1 characters):

Remove
Replace with hyphen
Split and CamelCase

Allow underscores Underscores are not valid ASN.1 characters, but some ASN.1 compilers allow them.

Other:

Generate comments/hints Show how the input JSON message can be changed to better fit ASN.1 schema rules.

Allow ASN.1 Encoding Instructions Generate an exact, but more complex schema.

Force"additionalProperties":false, unless specified explicitly Controls extensibility of strutctured ASN.1 types, which by default are not extendable.

Generate JSONValue for unresolved/unsupported JSON values Generate a generic ASN.1 type for unsupported and unresolved schema fragments.

ASN.1 Schema

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