It looks like this is already the case, but only documented in the code
(lib/galaxy/webapps/galaxy/api/workflows.py):
def _update_step_parameters(step, param_map):
"""
Update ``step`` parameters based on the user-provided ``param_map``
dict.
``param_map`` should be structured as follows::
PARAM_MAP = {STEP_ID: PARAM_DICT, ...}
PARAM_DICT = {NAME: VALUE, ...}
For backwards compatibility, the following (deprecated) format is
also supported for ``param_map``::
PARAM_MAP = {TOOL_ID: PARAM_DICT, ...}
in which case PARAM_DICT affects all steps with the given tool id.
If both by-tool-id and by-step-id specifications are used, the
latter takes precedence.
Finally (again, for backwards compatibility), PARAM_DICT can also
be specified as::
PARAM_DICT = {'param': NAME, 'value': VALUE}
Note that this format allows only one parameter to be set per step.
"""
Thanks,
Jim
On Mon, May 5, 2014 at 1:56 PM, Jim McCusker wrote:
> The current method for supplying parameters to tools using the REST API
> for workflows is fairly broken. The structure is as follow:
>
> "parameters":{
> "tool_1": {
> "param":"param_name",
> "value":"param value"
> },
> "tool_2": {
> "param":"param_name",
> "value":"param value"
> }
>
> This structure means that it is impossible to submit more than 1 parameter
> per tool within a workflow. Tools themselves, and workflows that use them,
> have no problems with accepting multiple parameters. We should be
> supporting something more like the following:
>
> "parameters":{
> "tool_1": {
> "param_name1":"param value 1"
> "param_name2":"param value 2"
> },
> "tool_2": {
> "tool_2_param_name1":"param value 1"
> "tool_2_param_name2":"param value 2"
> }
>
> Is there any work towards something like this taking place? I imagine that
> the REST API could support both formats (if the tool parameters dict has
> anything in it other than "param" and "value", use the new structure) for
> backwards compatibility.
>
> Thanks,
> Jim
>
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